Reino Lehto's cabinet was the 47th government of Republic of Finland. Cabinet's time period was from December 18, 1963 to September 12, 1964. It is the longest caretaker government in Finnish history.
| Prime Minister Reino Lehto Aarne Nuorvala, deputy Reino Oittinen, deputy | December 18, 1963 – September 12, 1964 December 18, 1963 – June 8, 1964 June 12, 1964 – September 12, 1964 | Independent Independent Independent | |
| December 18, 1963 – September 12, 1964 | Independent | ||
| Minister of Foreign Affairs Jaakko Hallama | December 18, 1963 – September 12, 1964 | Independent | |
| Minister of Justice Olavi Merimaa | December 18, 1963 – September 12, 1964 | Independent | |
| December 18, 1963 – September 12, 1964 | Independent | ||
| Minister of the Interior Arno Hannus | December 18, 1963 – September 12, 1964 | Independent | |
| Minister of Finance Esko Rekola | December 18, 1963 – September 12, 1964 | Independent | |
| Deputy Minister of Finance Heikki Tuominen | December 18, 1963 – September 12, 1964 | Independent | |
| Minister of Education Reino Oittinen | December 18, 1963 – September 12, 1964 | Independent | |
| Minister of Agriculture Samuli Suomela | December 18, 1963 – September 12, 1964 | Independent | |
| Minister of Transport and Public Works Martti Niskala | December 18, 1963 – September 12, 1964 | Independent | |
| December 18, 1963 – September 12, 1964 | Independent | ||
| December 18, 1963 – September 12, 1964 | Independent | ||
| Minister of Social Affairs Olof Ojala | December 18, 1963 – September 12, 1964 | Independent | |
| Deputy Minister of Social Affairs Magnus Kull | December 18, 1963 – September 12, 1964 | Independent |